[INFO] cloning repository https://github.com/aboglioli/rwm
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aboglioli/rwm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faboglioli%2Frwm"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faboglioli%2Frwm'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2d41f03c0a74a4caddf193a818f9016011bf3167
[INFO] checking aboglioli/rwm against try#96b3c169cd2d8959926fa240f10342f1659f8ae3 for pr-71896
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faboglioli%2Frwm" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aboglioli/rwm on toolchain 96b3c169cd2d8959926fa240f10342f1659f8ae3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/aboglioli/rwm
[INFO] finished tweaking git repo https://github.com/aboglioli/rwm
[INFO] tweaked toml for git repo https://github.com/aboglioli/rwm written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/aboglioli/rwm already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9382790aeb189c9014be6a1e1a6e349f817e0ed0b5ecdbef08d105f38a5bb5af
[INFO] running `"docker" "start" "-a" "9382790aeb189c9014be6a1e1a6e349f817e0ed0b5ecdbef08d105f38a5bb5af"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]     Checking rwm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `win`
[INFO] [stderr]    --> src/core/window_manager.rs:123:25
[INFO] [stderr]     |
[INFO] [stderr] 123 |         if let Some((i, win)) = self
[INFO] [stderr]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_win`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Error`
[INFO] [stderr]   --> src/core/error.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct Error {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Server`
[INFO] [stderr]  --> src/core/server.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Server {}
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/core/server.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn new() -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `start`
[INFO] [stderr]  --> src/core/server.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn start(&self) {}
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `win`
[INFO] [stderr]    --> src/core/window_manager.rs:123:25
[INFO] [stderr]     |
[INFO] [stderr] 123 |         if let Some((i, win)) = self
[INFO] [stderr]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_win`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Error`
[INFO] [stderr]   --> src/core/error.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct Error {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Server`
[INFO] [stderr]  --> src/core/server.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Server {}
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/core/server.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn new() -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `start`
[INFO] [stderr]  --> src/core/server.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn start(&self) {}
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.38s
[INFO] running `"docker" "inspect" "9382790aeb189c9014be6a1e1a6e349f817e0ed0b5ecdbef08d105f38a5bb5af"`
[INFO] running `"docker" "rm" "-f" "9382790aeb189c9014be6a1e1a6e349f817e0ed0b5ecdbef08d105f38a5bb5af"`
[INFO] [stdout] 9382790aeb189c9014be6a1e1a6e349f817e0ed0b5ecdbef08d105f38a5bb5af